public IEnumerator GetEnumerator()
{
List <string> format_list = new List <string>();
int nContentIndex = format_list.Count;
int nTimestampIndex = -1;
int nMetadataIndex = -1;
format_list.Add(this.Format);
// if ((this.GetBiblioInfoStyle & dp2Circulation.GetBiblioInfoStyle.Timestamp) != 0)
if (this.GetBiblioInfoStyle.HasFlag(GetBiblioInfoStyle.Timestamp) == true) // 新用法
{
nTimestampIndex = format_list.Count;
format_list.Add("timestamp");
}
if ((this.GetBiblioInfoStyle & GetBiblioInfoStyle.Metadata) != 0)
{
nMetadataIndex = format_list.Count;
format_list.Add("metadata");
}
string[] formats = new string[format_list.Count];
format_list.CopyTo(formats);
List <string> batch = new List <string>();
for (int index = 0; index < m_recpaths.Count; index++)
{
string s = m_recpaths[index];
batch.Add(s);
// 每100个一批，或者最后一次
if (batch.Count >= 100 ||
(index == m_recpaths.Count - 1 && batch.Count > 0))
{
REDO:
string strCommand = "@path-list:" + StringUtil.MakePathList(batch);
string[] results = null;
byte[] timestamp = null;
string strError = "";
// Channel.Timeout = new TimeSpan(0, 0, 5); 应该让调主设置这个值
long lRet = Channel.GetBiblioInfos(
this.Stop,
strCommand,
"",
formats,
out results,
out timestamp,
out strError);
if (lRet == -1)
{
if (this.Prompt != null)
{
MessagePromptEventArgs e = new MessagePromptEventArgs();
// e.MessageText = "获得书目记录 '"+strCommand+"' ("+StringUtil.MakePathList(format_list)+") 时发生错误： " + strError;
e.MessageText = "获得书目记录时发生错误： " + strError + "\r\ncommand='" + strCommand + "' (" + StringUtil.MakePathList(format_list) + ")";
e.Actions = "yes,no,cancel";
this.Prompt(this, e);
if (e.ResultAction == "cancel")
{
throw new ChannelException(Channel.ErrorCode, strError);
}
else if (e.ResultAction == "yes")
{
goto REDO;
}
else
{
// no 也是抛出异常。因为继续下一批代价太大
throw new ChannelException(Channel.ErrorCode, strError);
}
}
else
{
throw new ChannelException(Channel.ErrorCode, strError);
}
}
if (lRet == 0)
{
if (lRet == 0 && String.IsNullOrEmpty(strError) == true)
{
foreach (string path in batch)
{
BiblioItem item = new BiblioItem();
item.RecPath = path;
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + path + "' 不存在";
yield return(item);
}
goto CONTINUE;
}
// 如果results.Length表现正常，其实还可以继续处理
if (results != null && results.Length > 0)
{
}
else
{
// 2014/1/15
if (Channel.ErrorCode == ErrorCode.NotFound)
{
foreach (string path in batch)
{
BiblioItem item = new BiblioItem();
item.RecPath = path;
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + path + "' 不存在";
yield return(item);
}
goto CONTINUE;
}
strError = "获得书目记录 '" + StringUtil.MakePathList(batch) + "' 时发生错误: " + strError;
throw new Exception(strError);
}
}
if (results == null)
{
strError = "results == null";
throw new Exception(strError);
}
for (int i = 0; i < results.Length / formats.Length; i++)
{
BiblioItem item = new BiblioItem();
item.RecPath = batch[i];
if (nContentIndex != -1)
{
item.Content = results[i * formats.Length + nContentIndex];
}
if (nTimestampIndex != -1)
{
item.Timestamp = ByteArray.GetTimeStampByteArray(results[i * formats.Length + nTimestampIndex]);
}
if (nMetadataIndex != -1)
{
item.Metadata = results[i * formats.Length + nMetadataIndex];
}
if (string.IsNullOrEmpty(item.Content) == true)
{
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + item.RecPath + "' 不存在";
}
yield return(item);
}
CONTINUE:
if (batch.Count > results.Length / formats.Length)
{
// 有本次没有获取到的记录
batch.RemoveRange(0, results.Length / formats.Length);
if (index == m_recpaths.Count - 1)
{
goto REDO; // 当前已经是最后一轮了，需要继续做完
}
// 否则可以留给下一轮处理
}
else
{
batch.Clear();
}
}
}
}
public IEnumerator GetEnumerator()
{
List<string> format_list = new List<string>();
int nContentIndex = format_list.Count;
int nTimestampIndex = -1;
int nMetadataIndex = -1;
format_list.Add(this.Format);
// if ((this.GetBiblioInfoStyle & dp2Circulation.GetBiblioInfoStyle.Timestamp) != 0)
if (this.GetBiblioInfoStyle.HasFlag(GetBiblioInfoStyle.Timestamp) == true) // 新用法
{
nTimestampIndex = format_list.Count;
format_list.Add("timestamp");
}
if ((this.GetBiblioInfoStyle & GetBiblioInfoStyle.Metadata) != 0)
{
nMetadataIndex = format_list.Count;
format_list.Add("metadata");
}
string[] formats = new string[format_list.Count];
format_list.CopyTo(formats);
List<string> batch = new List<string>();
for (int index = 0; index < m_recpaths.Count; index++)
{
string s = m_recpaths[index];
batch.Add(s);
// 每100个一批，或者最后一次
if (batch.Count >= 100 ||
(index == m_recpaths.Count - 1 && batch.Count > 0))
{
REDO:
string strCommand = "@path-list:" + StringUtil.MakePathList(batch);
string[] results = null;
byte[] timestamp = null;
string strError = "";
// Channel.Timeout = new TimeSpan(0, 0, 5); 应该让调主设置这个值
long lRet = Channel.GetBiblioInfos(
this.Stop,
strCommand,
"",
formats,
out results,
out timestamp,
out strError);
if (lRet == -1)
{
if (this.Prompt != null)
{
MessagePromptEventArgs e = new MessagePromptEventArgs();
e.MessageText = "获得书目记录 '"+strCommand+"' ("+StringUtil.MakePathList(format_list)+") 时发生错误： " + strError;
e.Actions = "yes,no,cancel";
this.Prompt(this, e);
if (e.ResultAction == "cancel")
throw new ChannelException(Channel.ErrorCode, strError);
else if (e.ResultAction == "yes")
goto REDO;
else
{
// no 也是抛出异常。因为继续下一批代价太大
throw new ChannelException(Channel.ErrorCode, strError);
}
}
else
throw new ChannelException(Channel.ErrorCode, strError);
}
if (lRet == 0)
{
if (lRet == 0 && String.IsNullOrEmpty(strError) == true)
{
foreach (string path in batch)
{
BiblioItem item = new BiblioItem();
item.RecPath = path;
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + path + "' 不存在";
yield return item;
}
goto CONTINUE;
}
// 如果results.Length表现正常，其实还可以继续处理
if (results != null && results.Length > 0)
{
}
else
{
// 2014/1/15
if (Channel.ErrorCode == ErrorCode.NotFound)
{
foreach (string path in batch)
{
BiblioItem item = new BiblioItem();
item.RecPath = path;
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + path + "' 不存在";
yield return item;
}
goto CONTINUE;
}
strError = "获得书目记录 '" + StringUtil.MakePathList(batch) + "' 时发生错误: " + strError;
throw new Exception(strError);
}
}
if (results == null)
{
strError = "results == null";
throw new Exception(strError);
}
for (int i = 0; i < results.Length / formats.Length; i++)
{
BiblioItem item = new BiblioItem();
item.RecPath = batch[i];
if (nContentIndex != -1)
item.Content = results[i * formats.Length + nContentIndex];
if (nTimestampIndex != -1)
item.Timestamp = ByteArray.GetTimeStampByteArray(results[i * formats.Length + nTimestampIndex]);
if (nMetadataIndex != -1)
item.Metadata = results[i * formats.Length + nMetadataIndex];
if (string.IsNullOrEmpty(item.Content) == true)
{
item.ErrorCode = ErrorCode.NotFound;
item.ErrorInfo = "书目记录 '" + item.RecPath + "' 不存在";
}
yield return item;
}
CONTINUE:
if (batch.Count > results.Length / formats.Length)
{
// 有本次没有获取到的记录
batch.RemoveRange(0, results.Length / formats.Length);
if (index == m_recpaths.Count - 1)
goto REDO; // 当前已经是最后一轮了，需要继续做完
// 否则可以留给下一轮处理
}
else
batch.Clear();
}
}
}
